Prepare the Paste: Crush the dry coconut, ginger, green chilli, and garlic together in a mortar and pestle to make a coarse, flavorful paste.
Heat the Oil: Heat oil in a pan or kadhai. Add mustard seeds and let them splutter.
Temper the Spices: Add your cumin seeds, asafoetida (hing), curry leaves, and chopped onion. Sauté until the onion is lightly roasted.
Sauté the Paste: Stir in the fresh coconut and garlic paste you prepared earlier, cooking it well to remove the raw smell.
Add Tomatoes: Toss in the chopped tomato and cook until it softens.
Mix the Spices: Turn the heat down to low. Mix in the turmeric powder, Kanda Lasun Masala, and salt. Next, add the garam masala and cumin-coriander powder.
Add Drumsticks & Raw Mango: Toss the chopped drumsticks into the masala base. Follow this up with the tangy raw mango (kairi) pieces.
Mix in the Dal: Drain your soaked matki dal and add it to the pan. Top it off with fresh chopped coriander and stir everything together nicely.
Simmer the Curry: Pour 2 glasses of warm water into the pan and mix well.
Cover and Cook: Cover the pan and let the curry cook on a low flame for about 15 minutes. Once the drumsticks and dal are perfectly tender, your delicious Shevgyachya Shengachi Amti is ready to serve!